Home / 31,551.47-47,313.40-11,816.19

Finding the Fourth Proportional to 31,551.47, 47,313.40 and 11,816.19

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Solution

The fourth proportional to 31,551.47, 47,313.40 and 11,816.19 is: 17,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.47 : 47,313.40 = 11,816.19 : x
  2. Step 2: Convert to fraction form
    31,551.47/47,313.40 = 11,816.19/x
  3. Step 3: Cross multiply
    31,551.47x = 47,313.40 × 11,816.19
  4. Step 4: Simplify right side
    31,551.47x = 559,064,094.41
  5. Step 5: Solve for x
    x = 559,064,094.41/31,551.47
  6. Step 6: Final answer
    x = 17,719.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.